45079729817 has 4 divisors (see below), whose sum is σ = 45404044560. Its totient is φ = 44755415076.

The previous prime is 45079729781. The next prime is 45079729837. The reversal of 45079729817 is 71892797054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45079729817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45079729837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162157163 + ... + 162157440.

It is an arithmetic number, because the mean of its divisors is an integer number (11351011140).

Almost surely, 2^45079729817 is an apocalyptic number.

It is an amenable number.

45079729817 is a deficient number, since it is larger than the sum of its proper divisors (324314743).

45079729817 is a wasteful number, since it uses less digits than its factorization.

45079729817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324314742.

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 45079729817 in words is "forty-five billion, seventy-nine million, seven hundred twenty-nine thousand, eight hundred seventeen".